Tesla Effect: A Tex Murphy Adventure is a point and click adventure game developed by Big Finish Games and released on Microsoft Windows and Mac OS. Like the previous games in the Tex Murphy series, it tells much of its story through live-action sequences.

Tex Murphy wakes up - disoriented and head pounding - on the fire escape outside his office atop the Ritz Hotel. Another typical morning for the last of the old-school detectives. Except it isn't. What starts out as the worst hangover in history becomes a baffling nightmare: something - or someone - has erased Tex's memory of the past seven years.